GB1477048A - Digital/analogue converter circuit - Google Patents

Digital/analogue converter circuit

Info

Publication number
GB1477048A
GB1477048A GB3902874A GB3902874A GB1477048A GB 1477048 A GB1477048 A GB 1477048A GB 3902874 A GB3902874 A GB 3902874A GB 3902874 A GB3902874 A GB 3902874A GB 1477048 A GB1477048 A GB 1477048A
Authority
GB
United Kingdom
Prior art keywords
digital
logic
output
shift register
register
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3902874A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1477048A publication Critical patent/GB1477048A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/72—Sequential conversion in series-connected stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

1477048 Digital - to - analogue conversion LICENTIA PATENT - VERWALTUNGSGmbH 6 Sept 1974 [28 Sept 1973] 39028/74 Heading H3H In digital-to-analogue conversion, the digital value is the number of logic is continuously circulated through a shift register 1, the contents of which can be controlled by logic 2 for replacing logic is by 0s and vice-versa, the analogue output U 0 being derived by integration of the shift register output. Preferably the number of stages n in the shift register is even. For initial setting to half full scale value, alternate is and 0s are read into register 1 via AND gate U 1 , feedback of the register contents via gate U 3 being inhibited. For subsequent adjustment up (or down) the first 0 (or 1) appearing at the output A is replaced by a 1 (or 0), the rate of replacement being at most 1 bit per recirculation cycle, f 3 = f 1/n . The invention may be used for controlling volume, brightness and colour in TV sets, lighting brightness and servomotors.
GB3902874A 1973-09-28 1974-09-06 Digital/analogue converter circuit Expired GB1477048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2348831A DE2348831C3 (en) 1973-09-28 1973-09-28 Digital-to-analog converter

Publications (1)

Publication Number Publication Date
GB1477048A true GB1477048A (en) 1977-06-22

Family

ID=5893973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3902874A Expired GB1477048A (en) 1973-09-28 1974-09-06 Digital/analogue converter circuit

Country Status (7)

Country Link
US (1) US4030092A (en)
JP (1) JPS5916446B2 (en)
DE (1) DE2348831C3 (en)
FR (1) FR2246119B3 (en)
GB (1) GB1477048A (en)
IT (1) IT1020385B (en)
NL (1) NL7411627A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479838U (en) * 1977-11-17 1979-06-06
DE3046772C2 (en) * 1980-12-12 1983-08-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Clock generator
DE3046771A1 (en) * 1980-12-12 1982-07-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digital=to=analogue converter - resolution being nearly doubled by reducing repetition frequency of shift clock during register shift period
US6052075A (en) * 1981-09-03 2000-04-18 Canon Kabushiki Kaisha Data processing device having a D/A function
DE3633679A1 (en) * 1986-10-03 1988-04-14 Bosch Gmbh Robert CIRCUIT ARRANGEMENT FOR INFLUENCING SIGNALS
JPH01225224A (en) * 1988-03-03 1989-09-08 Pioneer Electron Corp Digital analog converting circuit
US6466147B1 (en) 1999-10-25 2002-10-15 Hrl Laboratories, Llc Method and apparatus for randomized dynamic element matching DAC

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074817A (en) * 1962-12-28 1967-07-05 Matsushita Electric Ind Co Ltd Decoders
US3388241A (en) * 1965-09-15 1968-06-11 Navy Usa Digital integrator
US3543009A (en) * 1966-05-13 1970-11-24 Research Corp Binary transversal filter systems
FR1542693A (en) * 1967-09-04 1968-10-18 Cit Alcatel Step voltage generator
GB1382048A (en) * 1971-09-15 1975-01-29 Int Computers Ltd Randomnumber generators
US3831167A (en) * 1972-11-08 1974-08-20 Bell Telephone Labor Inc Digital-to-analog conversion using multiple decoders
US3822380A (en) * 1973-05-25 1974-07-02 Gen Dynamics Corp Digitally controlled signal generator

Also Published As

Publication number Publication date
IT1020385B (en) 1977-12-20
FR2246119B3 (en) 1977-07-08
JPS5916446B2 (en) 1984-04-16
DE2348831B2 (en) 1979-11-22
DE2348831A1 (en) 1975-04-24
US4030092A (en) 1977-06-14
JPS5062353A (en) 1975-05-28
DE2348831C3 (en) 1980-08-07
NL7411627A (en) 1975-04-02
FR2246119A1 (en) 1975-04-25

Similar Documents

Publication Publication Date Title
GB1477048A (en) Digital/analogue converter circuit
GB1481566A (en) Logic circuit arrangement using a plurality of complementary igfeths
GB1464142A (en) Hydraulic control system
GB1394102A (en) Corpuscular beam apparatus
FR2401558A1 (en) Integrated MOS A=D converter with single supply - has successive approximation stage operating together with comparator, D=A converter and input signal divider
GB1445959A (en) Delte modulation decoding apparatus
Pette et al. Differences between red and white muscles
IL45998A0 (en) Novel piperidinium compounds,their manufacture and plant growth regulating compositions containing them
JPS56123073A (en) Bicolor picture signal deciding circuit
JPS56147519A (en) Digital-to-analog converter
JPS5543631A (en) Printer
JPS5275602A (en) Waste gas-circulating type positive pressure sintering process
CA1024144A (en) 4(3h)-oxobenzo-2,1,3-thiadiazine-2,2-dioxides
JPS57131169A (en) Gradation compensation device
JPS5715509A (en) Power supply circuit for power amplifier
JPS57201381A (en) Digital television set
JPS55112058A (en) Clock pulse generator circuit
JPS5243802A (en) Pretreatment of raw materials of formed coke
JPS5485101A (en) Manufacture of sintered ore using mini-pellet
EP0184448A3 (en) Digital scan converters
JPS5525207A (en) Standard color display device
GB1407272A (en) Brightness and contrast control circuit
JPS5790731A (en) Power supply control system
JPS5797222A (en) Nonlinear analog-to-digital converter
JPS57129519A (en) Automatic frequency controlling circuit

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee